Patch antennas on light weight clothing - experimental and theoretical investigations

摘要: Human monitoring and communications is often best arranged using a low powered wireless network. Patch antennas mounted on clothing made from thick fabric (e.g. synthetic fleece) have been investigated (1-3). Such materials are suited to cold climates but not for athlete monitoring, tropical locations or sleep patients. This paper reports initial investigations of patch thin cotton fabrics use at 2.45 GHz. A number were designed Microwave Office with woven as the dielectric (er = 1.63e0) constructed flexible adhesive copper both probe microstrip transmission line feeds. Measurements S11, antenna gain directional characteristics in an anechoic chamber thicknesses 6mm 0.5mm. Their performance was measured while bent along axes. significant conclusions can be drawn. Firstly function satisfactorily even thinnest dielectric. Secondly resonant frequency independent bending one axis other (see Figure 1). Thirdly, radiation pattern almost bend radius. work indicates that light weight fabric, effective wearable antennas.